Cryo-Mechanical Memory Extraction Against Modern Embedded Systems

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Presented at IEEE Workshop on Offensive Technologies 17 by

Dr. Cui

Yuanzhe Wu

Dr. Skipper

Cryo-mechanical methodology extended cold boot attacks on embedded systems Overcomes limitations of removable memory or code execution with debugging Physically transfers discrete memory chips, reads data with FPGA, and reconstructs memory image Demonstrated on Siemens SIMATIC S7-1500 PLC to recover encrypted firmware binaries Adapting the procedure for DDR3 chips in Cisco IP phones, DDR4, and DDR5 (with higher costs for FPGA boards)